Mothers' Instinct (2024)

In the 1960s, Céline and Alice are living parallel lives right next door to each other in an upper middle class suburb. They're both stay-at-home moms to their 8-year-old sons (who also happen to be best friends) and have suit-wearing husbands. They get together for dinner and throw parties for each other's birthdays.

When Céline's son dies in a fall that Alice is seconds too late to prevent, things get understandably dark. As Céline becomes more and more interested in spending time with Alice's son, Alice sees danger and worries about her son's safety. Is Alice giving in to paranoia bred of her own guilt? Or is she perceiving actual threat masquerading as depression?

This was a capable (though rather muted) thriller right up until the last act, when things get almost silly. 

C+